I sadly don't have molds and buy old ones off ebay.I am keen to try and cast some new ones as the old ones are often not available/over priced.I have bid on German ebay but Spenkuch goes for funny money as do others...

Yes, the cost of the molds can get crazy. I've paid more than I care to admit to Berliner Zinnfiguren over the years. They have a monopoly on Spenkuch and charge like it, their molds are costly as well.